Locomotive using crude fuel oil



Dec 27, 19270 1,653,798

- v. BRAZZOLA LOCOMOTIVE USING CRUDE FUEL OIL Filed Sept. 30, 1922 In 716 MO? T ficiario 33/122202:

Patented Dec. 27, 1927.

UNITED STATES 1,653,798 PATENT ()FFlCE.

V IG'IOBIO BBAZZOLA, OF BUENDS AIRES, ARGENTINA.

LOGOMO'IIVE USING CRUDE FUEL OIL.

Application filed September 30, 1922, Serial No. 591,655, and in Argentina June 27, 1922.

This invention relates tocertain new and useful improvements which I have introduced into the method of combustion actually employed in locomotives using crude oil as fuel. By means of these improvements, besides a uniform and constant working, the total consumption of the gases in the fire box, and, consequently, a maximum of heating power is obtained from the fuel.

By the use of the actual method of firing in which combustion is obtained by an intermittent draft produced by the operation of the exhaust pipe, arranged within the smoke box, the process ofcombustion cannot take place in a convenient manner as regards the complete utilization of the gases, as it allows of a high percentage of these latter to get carbonized and be exhausted without having been burnt or having been so only in an imperfect manner.

A further advantage offered by my present invention, consists in avoiding the oarbonization of the oil in the valves and cylinders, caused by the hot gases of the smoke box, because, as in accordance with my invention the-exhaust pipes are arranged to exhaust outside said smoke box, the vacuum caused by the movement of the plunger, will be replaced by atmospheric air, thereby eliminating the drawback of the carbonization of the oil.

In order that my invent-ion maybe more readily understood, an illustrative drawing has been annexed to this specification, showing in front elevation the ordinary arrangement of the steam and exhaust pipes of a locomotive. In the same figure and by means of pointed lines, the novel arrangement of said parts in accordance with my invention has been indicated. It should however be understood that the exhaust may be led in any other direction, outside the smoke box, without such alteration of the direction affecting the scope of this invention.

The invention substantially consists in so arranging in any suitable manner the exhaust pipes that they allow of deviating, outside the smoke box, the steam used in the cylinders and applying a continuous draft to the combustion by means of the existing draft producing apparatus, usually known as blower. It will be evident that this blower or draft producing apparatus may be subjected, if deemed necessary or convenient, to certain accidental modifications, in accordance with the force of draft required,

been provided with the extensions 3, 3 and 4, 4,

so that the discharge willtake place outside the smoke box. The usual interiorly exhausting pipe is thus eliminated and the necessary support for the blower is obtained by conveniently arranging a strong supporting plate 5, secured in position in any suitable way. In the known arrangement, said blowing device is fed not only by the exhaust, which causes the same to operate in an intermittent manner, but also, while the engine is stopping, with steam from a steam pipe 6, liable to become obstructed or get out of order. In order to avoid such objection, I provide a second or supplementary pipe 7 which only operates when the main pipe 6 gets out of order, thereby avoiding the necessity of repairs and a considerable loss of time during operation. Said pipes may be obturated at will by means of the cooks 8.

From the foregoing it will be seen that the improvements in accordance with my invention may be readily introduced into the existing arrangements, at a small cost.

In the drawing, the bifurcated pipe, a has been so arranged that the union or joined part of both branches is located at the upper part of the smoke box, both said branches there communicating with a pipe or stack discharging outside the smoke box, to atmosphere. Said point of junction may however be situated at any other suitable part of the smoke box without impairing the satisfactory working of the arrangement in any way.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim, is

In an oil-burning locomotive, in combination, a smoke stack; a smoke box; steam exhaust pipes leading from the cylinders, entering the smoke box at its lower portion, one at each side of the vertical center line, extending substantially vertically upwardly through the smoke box at opposite sides ply to said blower duringlnormal functioning of the parts; a valve for controlling the flow of steam in said pipe; and a supple mental valve-controlled pipe 7 inoperative during proper functioning of said main pi e but operable alternatively thereto in tiie event of failure of the latter to function.

In testimony whereof, I have signed my name to this specification.

VIGTORIO BRAZZOLA. 

